2 Routers, 1 with QoS

DJMK4 · 5 Dec 2007 at 15:21

Is it possible to have a WRT54GL on a network using an ADSL Connection.

I.E could I go

ADSL>Netgear DG834G>WRT54GL>Workstations?

And Have QoS running on the WRT54GL to limit bandwidth to the workstations?

If i stick one or two workstations on the Netgear router, then other workstations on the router running QoS, will the router running QoS dish out limited bandwidth to the rest of the network and me have full bandwidth?

tolien · 5 Dec 2007 at 16:27

Yes, provided you didn't connect anything to the DG834G. Major PITA if you use NAT on both routers though.

The router performing QoS can only touch packets which go through it - everything going through the DG834G is purely best effort.

DJMK4 · 5 Dec 2007 at 16:33

Thats my point, If i had 2 ports being used on the netgear router, 1 for my PC, the other acting as an uplink port to the 2nd router, then the rest of the pc's connected to the router running QoS, my pc would be uneffected, the PC's on the router running QoS could be limited on bandwidth?

tolien said:
Yes, provided you didn't connect anything to the DG834G. Major PITA if you use NAT on both routers though.

Would i not be able to connect 1 PC to the netgear router, then have the rest on the linksys?

tolien · 5 Dec 2007 at 16:36

You could limit them to some fixed setting, but there's the potential for either your machine or the total throughput from the other router (unless total throughput from the other router was limited to less than the connection speed) to max out the connection.

Would i not be able to connect 1 PC to the netgear router, then have the rest on the linksys?

Not without poking holes through the WRT's NAT.

DJMK4 · 5 Dec 2007 at 16:42

I guess the easiest way around it then is just to put all the machines onto the linksys router and have the netgear acting as an ADSL modem.

tolien · 5 Dec 2007 at 16:44

Yep - the Netgear might be able to work in half bridge mode, which would reduce it to being an ethernet ADSL modem (and the WRT's WAN interface should then get the public IP from your ISP).

DJMK4 · 5 Dec 2007 at 16:50

tolien said:
Yep - the Netgear might be able to work in half bridge mode, which would reduce it to being an ethernet ADSL modem (and the WRT's WAN interface should then get the public IP from your ISP).

Cool, ill have a look see if I can find anything on half bridge mode for my netgear.

Thanks for the help

One more question before I go, how reliable is the bandwidth management on the linksys router?

Are there different ways to cap bandwidth? I.E Port, IP, different applications? specific times of the day etc? I need to enforce a tight policy based on traffic to and from the router during peak times to certain applications.

tolien · 5 Dec 2007 at 16:57

Never really tried it, but it should be as reliable as anything else. The available options will depend on the firmware that's installed.
The underlying stuff isn't WRT-specific.

Avalon · 6 Dec 2007 at 11:03

The 834G had an undocumented bridge mode hack hang on i'll see what I can dig up.

*edit* Here you go, can't test it but if it's not working i'll check properly in a bit.

192.168.0.1/setup.cgi?next_file=mode.htm

DJMK4 · 6 Dec 2007 at 12:39

Avalon said:
The 834G had an undocumented bridge mode hack hang on i'll see what I can dig up.

*edit* Here you go, can't test it but if it's not working i'll check properly in a bit.

192.168.0.1/setup.cgi?next_file=mode.htm

That worked a treat

Thanks mate

Avalon · 6 Dec 2007 at 14:05

You're welcome, it's unsupported but it served me well for long enough with exactly the same setup as you're running. If you reboot the router iirc you need to re-enable it but not sure if that issue still exists as it's been a while since I had to play with the 834's